Oiling tool



Feb; 10, 1942. A J. w. 'cNNoRs OILING TOOL Filed May 24, 1940 f l. I 0

Patentedl Feb. 10, 1942 UNHTED STATES PATENT OFFICE oIuNG 'rooL John W.Connors, Washington, D. C. lApplication May 24, 1940, Serial No. 337,069

4 claims. (o1. 2,21-44)4 l 'I'his invention relates to an oiling toolconsisting of an oil reservoir and an oil applying nib. The inventionmore particularly relates to an oiling tool which 'has a relatively widebut thin oil applying nib with which small quantities of oil may beapplied to surfaces to which access is Vdiicult.l

There are numerous machines which have relatively rotating parts whichhave so little space between them as to render lubrication of adjacentsurfaces difficult. In such devices as numbering blocks on printingmachines wherein the\ printing surface of the numbering wheel may not becontaminated with lubricating oil, proper lubrication becomes a realproblem. Heretofore, such numbering wheels have been lubricated, byinserting a thin tool having oil on the surface thereof between adjacentwheels. This practice, despite the greatest care by the operator,resulted in application of oil to the printing periphery of the wheelwith the result that a large percentage of the work produced subsequentto such lubricating operations was subject to rejection.

It is, therefore, the object of this invention to provide an oiling toolwhich may be inserted between machine parts despite the small spacetherebetween for the purpose of applying a lubricant to adjacentsurfaces Without danger of soiling the outer-surface of such parts withoil.

This object is accomplished by the provision of an oiling tool having asubstantially airtight reservoir which feeds oil through' an .oiling nibwhich is relatively flat and very thin, and which is provided with anoil outlet at its point through which oil Will not discharge until thesurface to be lubricated is contacted, or until pressure is applied tothe side of the nib.

Other objects and advantages of the invention will become apparent froma reading of the particular description thereof in light of the drawing,in which like reference numerals indicate like parts, and in which:

Figure 1 is -a side elevational view of the tool comprising theinvention in operative relation to parts to be lubricated;

Figure 2 is afront elevational view of the tool;

Figure 3 is a side elevational view; l

Figure 4 is an enlarged side elevational view of the nib;

Figure 5 is a longitudinal cross-sectional view taken on line 5 5 ofFigure 2; and

Figure 6 is a cross-sectional View taken on line 6-6 of Figure 2.

The oiling tool comprises a substantially cyvoir. An oil applying nib I2engages the reservoir Ill in threaded relation so as to form asubstantially airtight joint. The joint may be conveniently formed byproviding an internal ferrule Ill having screw threads on the exteriorthereof which are engaged by internalthreads on the casing IB and on thenib I2 thereof.

The nib I2 is composed of two thin side walls I6 and I8. These sidewallsare formed of resi1 ient metal and lie in contact with each otherthroughout the major portion of their adjacent surfaces. The side wallsI6 and I8 are shaped to provide a relatively wide base where they jointhe'body of the tool and they merge into edges 20 and 22 which convergefrom the base portion toward the tip of the nib.

In the nib is formed an oil channel 24 leading from the upper end of thenib Vto its point. This channel is preferably formed midway between theedges 20 and 22 by spacing one of the side walls outwardly as at 26.

The side walls I6 and I8 are joined along the converging edges 20 and 22to a point near'the bottom of the nib whereat these walls are spaced toprovide an oil outlet 28 at the tip of the nib. A lateral/oil dischargepassage 30 is formed in one of the side walls and communicates with theoil channel 24 whereby a lubricant may be applied in a lateral directionto parts to be lubricated. v

In the use of the device, the nib I2 is inserted between relativelyrotating machine members, such as, for example, number wheels a and b ofFigure 1. Inasmuch as the reservoir I0 is substantially airtight; oilwill not be discharged through either the outlet 28 or the outlet 30until the tip 28 contacts a machine part such as the shaft c or untilthe lateral passage 30 is brought in contact with the adjacent surfaceof either elements a or b. `The capillary attraction, when such contactis established, is ordinarily suincient to effect the discharge of aminute quantity of oil required.. However, it is also contemplated thatthe nib may be pressed against an adjacent machine part so as to exertpressure on the walls I6 or I8, and thereby assist in expelling smallquantities of oil through the discharge openings 2s and an.

The invention has been illustrated in a single form but it is obviousthat modifications thereof may be Amade without departing from thespirit of the subjoined claims.

Iclaim:

1. An oiling tool comprising a substantially lindrical casingl I0 whichserves as an oil reser- 55 airtighty casing constituting an qureservoir, a,

relatively wide, thin oil applying nib in communication with saidreservoir, a medial oil channel lying above the facial plane of said niband extending to the end thereof. and a small oil outlet passage at theend of said nib, said nib being formed of resilient metal wherebylateral pressure thereon is transmitted to said channel during operationthereof to expel oil through said oil outlet.

2.' An oiling tool comprising a substantially airtight casingconstituting an oil reservoir, an oil applying nib in communication withsaid reservoir, said nib having two thin contacting side walls merginginto edges which converge from a relative wide base toward the pointthereof, a medial oil channel lying above the facial plane of said niband extending to the end thereof, and an oil outlet passage'at the endof said nib remote from said reservoir, said nib being formed ofresilient metal whereby lateral pressure thereon is transmitted to saidchannel during operation thereof to expel oil through said oil outlet.

3. An oiling tool comprising a substantially airtight casingconstituting an oily reservoir, an oil applying nib in communicationwith said reservoir, said nib having two thin contacting side wallsmerging into edges which converge from a relative wide base toward the.point thereof, an oil channel formed centrally between said side wallsby spacing one of said walls outwardly beyond the facial plane of saidniband a lateral oil discharge passage formed in one of said walls incommunication with `said channel, said nib being formed of resilientmetal whereby lateral pressure thereon is transmitted to said channelduring operation thereof to expel oil through said oil dischargepassage.

4. An olling tool comprising a cylindrical casing constituting an oilreservoir, an oil applying nib in threaded engagement with saidreservoir. said nib having two thin contacting side walls merging intoedges which converge from a relatively wide base toward the tip thereof,an oil channel formed centrally between said side walls by spacing oneof said walls outwardly, an oil outlet between said side walls at thetip of said nib, and a lateral oil discharge passage formed in one ofsaid side walls in communication with said channel, said nib beingformed of resilient metal whereby lateral pressure thereon istransmitted to said channel during operation thereof to expel oilthrough said outlet and passage.

JOHN W. CONNORS.

